CN104606748A - Pressure reduction injection syringe capable of exhausting - Google Patents
Pressure reduction injection syringe capable of exhausting Download PDFInfo
- Publication number
- CN104606748A CN104606748A CN201510068683.9A CN201510068683A CN104606748A CN 104606748 A CN104606748 A CN 104606748A CN 201510068683 A CN201510068683 A CN 201510068683A CN 104606748 A CN104606748 A CN 104606748A
- Authority
- CN
- China
- Prior art keywords
- injection
- pressure reduction
- syringe
- drug
- sealing cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/3129—Syringe barrels
- A61M5/3134—Syringe barrels characterised by constructional features of the distal end, i.e. end closest to the tip of the needle cannula
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Emergency Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a pressure reduction injection syringe capable of exhausting. The pressure reduction injection syringe comprises an injection cylinder, a piston, a push rod and an injection needle. The interior of the injection cylinder is provided with an injection cavity, and one side of the top end of the injection cylinder is provided with a syringe needle base communicated with the injection cavity. The pressure reduction injection syringe is characterized in that the other side of the top end of the injection cylinder is provided with an exhaust pipe, the interior of the exhaust pipe is provided with an exhaust channel for being communicated with the injection cavity and the outside, and the exhaust pipe is provided with a sealing cap for sealing the exhaust channel. According to the pressure reduction injection syringe, in the dissolving process of drug such as cefotiam which generates gas easily, the gas generated in the drug dissolving process can be discharged just by loosening the sealing cap, and the situation that in a previous drug dissolving process, a piston is pushed out or drug is scattered out from a needle opening is avoided; after the gas generated in the drug dissolving process is discharged, the sealing cap is screwed tightly, and normal drug infusion can be conducted; the pressure reduction injection syringe is reasonable in structure, remarkable in beneficial effect and convenient to apply and popularize.
Description
Technical field
The present invention relates to a kind of vented vacuum syringe, in particular, particularly relate to a kind of vented vacuum syringe gas produced during medicine dissolution can discharged smoothly.
Background technology
Cefotiam (being commonly called as cefotiam) is clinical conventional cephalosporin antibacterial, the easy aerogenesis medicine such as its powder is in course of dissolution, a large amount of gas can be produced, make a bottle too high pressure, use the aseptic molten syringe of common 20ml single use, syringe piston can be released syringe by powerful air pressure, or when extracting syringe needle, the pinprick place of bottle stopper spills medicinal liquid.There are above-mentioned two situations, all cause and to spatter outside medicinal liquid and lose.
Owing to producing a large amount of gas in dissolving cefotiam process, if inject 10ml physiological saline solution in bottle, gas after dissolving and liquid volume are more than 20ml, nurse needs repeatedly piercing vials to take out medicine, or detachable needle aerofluxus, not only make operation become complicated, considerably increase again the chance polluting medicinal liquid.
Summary of the invention
The present invention, in order to overcome the shortcoming of above-mentioned technical problem, provides a kind of vented vacuum syringe.
Vented vacuum syringe of the present invention, comprises injection tube, piston, push rod and entry needle, and the inside of described injection tube is injecting cavity, and top and the piston of push rod fix, and piston and push rod are positioned at injecting cavity; The side on injection tube top is provided with the needle holder communicated with injecting cavity, and entry needle is positioned in needle holder; Its special feature is: the opposite side on described injection tube top is provided with exhaustor, and the inside of aiutage is be communicated with injecting cavity and extraneous exhaust passage, aiutage is provided with sealing cap exhaust passage being carried out to shutoff.
Vented vacuum syringe of the present invention, described sealing cap and exhaustor are for being threaded.
Vented vacuum syringe of the present invention, the both sides of described injection tube bottom outer wall are provided with outer otic placode.
The invention has the beneficial effects as follows: vented vacuum syringe of the present invention, by the one end arranging needle holder on injection tube, exhaustor is set, for being communicated with injecting cavity and extraneous exhaust passage in exhaustor, and exhaustor is provided with and its volume of matching sealing cap; In use procedure, cefotiam etc. is easily being produced in the medicine dissolution process of gas, by loosening sealing cap, can the gas that produce during dissolved substance discharge, avoid in the past medicine dissolution time piston to be pushed out or medicine spills the generation of situation from pinprick; After the gas of medicine dissolution generation drains, screwing hermetic cap normally can carry out drug injection, simple and reasonable, and beneficial effect is remarkable, easy to utilize.
Accompanying drawing explanation
Fig. 1 is the structural representation of vented vacuum syringe of the present invention;
Fig. 2 is vented vacuum syringe use principle figure of the present invention.
In figure: 1 injection tube, 2 pistons, 3 push rods, 4 injecting cavities, 5 needle holder, 6 entry needles, 7 exhaustors, 8 exhaust passages, 9 sealing caps, 10 outer otic placodes, 11 apothecary jars, 12 cefotiams, 13 gases, 14 left hands, 15 right hands.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 1, give the structural representation of vented vacuum syringe of the present invention, it comprises injection tube 1, piston 2, push rod 3, needle holder 5, entry needle 6, exhaustor 7, sealing cap 9, outer otic placode 10; Shown injection tube 1 is cylindrical, and the inside of injection tube 1 is cylindrical injecting cavity 4, and piston 2 and push rod 3 are arranged in injecting cavity 4, and piston 2 is fixed on the top of push rod 3.Utilize push rod 3 driven plunger 3 to move down in injecting cavity 4 and on move, can suck respectively medicinal liquid and release medicinal liquid.Shown two outer otic placodes 10 are arranged at the two ends of injection tube 1 bottom outer wall respectively, and user, by the holding of the external otic placode 10 of finger, can realize the promotion of piston 2 smoothly.
Shown needle holder 5 is arranged at the top of injection tube 1, and entry needle 6 is installed in needle holder 5, and needle holder 6 is achieved and being communicated with, to realize suction and the injection of medicine of injecting cavity 4 by needle holder 5.Shown exhaustor 7 is also arranged at the top of injection tube 1, and and needle holder 5 interval arrange, the inside of exhaustor 7 is exhaust passage 8, and injecting cavity 4 is communicated with the external world by exhaust passage 8.Sealing cap 9 is arranged on exhaustor 7, and for carrying out shutoff to exhaustor 7, sealing cap 9 is matched by screw thread with exhaustor 7, in the process used, by loosening sealing cap 9, can realize injecting cavity 4 and be connected with the external world, be discharged by gas; By tightening sealing cap 9, the shutoff to exhaust passage 8 can be realized, to carry out normal injection.
As shown in Figure 2, give vented vacuum syringe use principle figure of the present invention, the use procedure of vacuum syringe of the present invention is as follows:
During use, in injecting cavity 4, first suck the solvent dissolving cefotiam, as 0.9% sodium chloride solution, then left hand is held by apothecary jar 11, and the right hand arrests injection tube 1, is inserted in apothecary jar 11 by the entry needle 6 on injection tube 1; Then in apothecary jar 11, solvent is injected, utilize the thumb on the right hand 15 and forefinger to loosen sealing cap 9 simultaneously, the gas 13 produced when now dissolving cefotiam 12 in apothecary jar 11, will enter into injecting cavity 4 by entry needle 6, and then enters exhaust passage 8 and enter the external world.
After treating the gas discharging in apothecary jar 11, again cefotiam 12 solution in apothecary jar 11 is pumped in syringe 4, then entry needle 6 is extracted from apothecary jar 11, and screwing hermetic cap 9, after being drained by gas in injecting cavity 4, drug injection can be carried out to patient.
Claims (3)
1. a vented vacuum syringe, comprises injection tube (1), piston (2), push rod (3) and entry needle (6), and the inside of described injection tube is injecting cavity (4), and top and the piston of push rod fix, and piston and push rod are positioned at injecting cavity; The side on injection tube top is provided with the needle holder (5) communicated with injecting cavity, and entry needle is positioned in needle holder; It is characterized in that: the opposite side on described injection tube (1) top is provided with exhaustor (7), the inside of aiutage is be communicated with injecting cavity (4) and extraneous exhaust passage (8), aiutage is provided with the sealing cap (9) exhaust passage being carried out to shutoff.
2. vented vacuum syringe according to claim 1, is characterized in that: described sealing cap (9) and exhaustor (7) are for being threaded.
3. vented vacuum syringe according to claim 1 and 2, is characterized in that: the both sides of described injection tube (1) bottom outer wall are provided with outer otic placode (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510068683.9A CN104606748A (en) | 2015-02-10 | 2015-02-10 | Pressure reduction injection syringe capable of exhausting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510068683.9A CN104606748A (en) | 2015-02-10 | 2015-02-10 | Pressure reduction injection syringe capable of exhausting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104606748A true CN104606748A (en) | 2015-05-13 |
Family
ID=53141567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510068683.9A Pending CN104606748A (en) | 2015-02-10 | 2015-02-10 | Pressure reduction injection syringe capable of exhausting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104606748A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110694144A (en) * | 2019-11-19 | 2020-01-17 | 湘南学院 | Syringe with a needle |
| CN110812230A (en) * | 2019-12-08 | 2020-02-21 | 湖南平安医械科技有限公司 | Disposable automatic exhaust syringe for dispensing |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2542220Y (en) * | 2002-05-14 | 2003-04-02 | 王春雷 | Syringe for animals |
| DE102004055870A1 (en) * | 2004-11-19 | 2006-05-24 | Robert Bosch Gmbh | One-way syringe comprises cylinder element, plastic squirted piston with head, opening and plug having fluid-close gas permeable teflon diaphragm placed in cylinder element |
| CN101112631A (en) * | 2007-07-25 | 2008-01-30 | 徐双苗 | Special type injection syringe for collocating and injecting directly after the adding of medicine |
| CN201135664Y (en) * | 2007-08-24 | 2008-10-22 | 周强 | Syringe |
| CN202982816U (en) * | 2012-12-30 | 2013-06-12 | 宁波市鄞州云帆工程咨询有限公司 | Inner exhaust type sleeved air exhaust piston |
| CN203898851U (en) * | 2014-06-09 | 2014-10-29 | 徐海英 | Injection syringe with needle cylinder capable of automatically discharging air |
| CN204050535U (en) * | 2014-09-23 | 2014-12-31 | 浙江欧健医用器材有限公司 | Joint syringe |
| CN204446821U (en) * | 2015-02-10 | 2015-07-08 | 山东大学齐鲁医院 | A kind of vented vacuum syringe |
-
2015
- 2015-02-10 CN CN201510068683.9A patent/CN104606748A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2542220Y (en) * | 2002-05-14 | 2003-04-02 | 王春雷 | Syringe for animals |
| DE102004055870A1 (en) * | 2004-11-19 | 2006-05-24 | Robert Bosch Gmbh | One-way syringe comprises cylinder element, plastic squirted piston with head, opening and plug having fluid-close gas permeable teflon diaphragm placed in cylinder element |
| CN101112631A (en) * | 2007-07-25 | 2008-01-30 | 徐双苗 | Special type injection syringe for collocating and injecting directly after the adding of medicine |
| CN201135664Y (en) * | 2007-08-24 | 2008-10-22 | 周强 | Syringe |
| CN202982816U (en) * | 2012-12-30 | 2013-06-12 | 宁波市鄞州云帆工程咨询有限公司 | Inner exhaust type sleeved air exhaust piston |
| CN203898851U (en) * | 2014-06-09 | 2014-10-29 | 徐海英 | Injection syringe with needle cylinder capable of automatically discharging air |
| CN204050535U (en) * | 2014-09-23 | 2014-12-31 | 浙江欧健医用器材有限公司 | Joint syringe |
| CN204446821U (en) * | 2015-02-10 | 2015-07-08 | 山东大学齐鲁医院 | A kind of vented vacuum syringe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110694144A (en) * | 2019-11-19 | 2020-01-17 | 湘南学院 | Syringe with a needle |
| CN110812230A (en) * | 2019-12-08 | 2020-02-21 | 湖南平安医械科技有限公司 | Disposable automatic exhaust syringe for dispensing |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150513 |